.centerDiv {
  display: flex;
  align-items: center;
  margin-right: auto;
  flex-direction: column;
}
.centerDivItem {
  background-color: rgb(255, 255, 255);
  height: 68vh;
  display: flex;
  justify-content: center; /*主轴对齐方式,水平居中*/
  min-height: 0;
  overflow: auto;
}
.backgroundColorItem {
  background-color: rgb(247, 247, 247);
  padding: 20px;
}

.ptextStyle {
  text-indent: 3em;
  line-height: 2.5em;
}
